The exact cause of bladder cancer is unknown. It occurs when abnormal cells grow and multiply quickly and uncontrollably, and invade other tissues. Smoking increases your risk of bladder cancer. Smoking causes half of all bladder cancers in men and women. The following factors also increase your risk of developing bladder cancer: exposure to cancer-causing chemicals at work.
Oil and natural gas are produced by the same geological process according fossil fuel suggestion: anaerobic decay of organic matter deep under the Earth's surface. As a consequence, oil and natural gas are often found together.In common usage, deposits rich in oil are known as oil fields, and deposits rich in natural gas are called natural gas fields.n general, organic sediments buried in depths of 1,000 m to 6,000 m (at temperatures of 60 Â° C to 150 Â°C) generate oil, while sediments buried deeper and at higher temperatures generate natural gas. The deeper the source, the drier the gas (that is, the smaller the proportion of condensates in the gas).
But that simple distinction offers little understanding of the different sources and applications of the two fossil fuels. Indeed, a little investigation into gas and oil shows how many similarities these two hydrocarbons actually share. What they are. The place where the differences between oil and gas are most obvious is at the molecular level. Just out of the well, natural gas contains a variety of different hydrocarbons â such as relatively complex gases like ethane, propane, butane and pentane â along with contaminants like carbon dioxide and water.